<template>
  <div class="login-container">
    <el-form autoComplete="on" :model="loginForm" :rules="loginRules" ref="loginForm" label-position="left" label-width="0px"
      class="card-box login-form">
      <h3 class="title">{{itemName}}</h3>
      <el-form-item prop="username">
        <span class="svg-container svg-container_login">
          <icon-svg icon-class="yonghuming" />
        </span>
        <el-input name="username" type="text" v-model="loginForm.username" autoComplete="on" placeholder="username" />
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <icon-svg icon-class="mima"></icon-svg>
        </span>
        <el-input name="password" type="password" @keyup.enter.native="handleLogin" v-model="loginForm.password" autoComplete="on"
          placeholder="password"></el-input>
      </el-form-item>

      <el-checkbox v-model="isRememberPassword" @change='changeValue'>记住密码</el-checkbox>

      <el-form-item>
        <el-button type="primary" style="width:100%;" :loading="loading" @click.native.prevent="handleLogin">
          Sign in
        </el-button>
      </el-form-item>
      <!-- <div class='tips'>
        <span style="margin-right:20px;">username: admin</span>
        </span> password: admin</span>
      </div> -->
    </el-form>
    <span>{{ itemAbbr }}</span>
  </div>
</template>

<script>
import { isvalidUsername } from '@/utils/validate'
import { getLocalstorage, setLocalstorage, removeLocalstorage } from '@/utils/auth'

export default {
  name: 'login',
  watch: {
    '$route': 'getHref'  // 监测url中的变化，从而不需要刷新就可以重新渲染页面
  },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!isvalidUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePass = (rule, value, callback) => {
      if (value.length < 5) {
        callback(new Error('密码不能小于5位'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'admin',
        password: 'admin'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePass }]
      },
      loading: false,  // flag 判断是否登录可以点击，执行登录事件
      href1: '',    // 当前页面的 url 地址
      itemName: '',
      isRememberPassword: false,  // 是否记住密码
      itemAbbr1: ''
    }
  },
  computed: {
    itemAbbr() {
      return this.$store.state.user.itemAbbr
    }
  },
  methods: {
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('Login', this.loginForm).then((response) => {
            this.loading = false
            // if (id === '1') {
            //   this.$router.push({ path: '/' })
            // } else if (id === '2') {
            //   this.$router.push({ path: '/' })
            // } else if (id === '3') {
            //   this.$router.push({ path: '/' })
            // }
            this.$router.push({ path: '/' })
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    changeValue() {
      if (this.isRememberPassword) {
        setLocalstorage(this.itemAbbr1 + '_isRememberPassword', this.isRememberPassword)
      } else {
        removeLocalstorage(this.itemAbbr1 + '_isRememberPassword')
      }
    },
    getHref() {     // 获取URL中传递的参数
      const id = (window.location.href).split('#')[1].split('/')[2]
      if (id === '1') {
        this.itemName = '通联商务后台管理系统'
        this.itemAbbr1 = 'tlsw'
        this.$store.commit('change_itemAbbr', 'tlsw') // 状态树中记录当前网站缩写的名字
      } else if (id === '2') {
        this.itemName = '现金贷后台管理系统'
        this.itemAbbr1 = 'xjd'
        this.$store.commit('change_itemAbbr', 'xjd')
      } else if (id === '3') {
        this.itemName = '小通分期后台管理系统'
        this.itemAbbr1 = 'xtfq'
        this.$store.commit('change_itemAbbr', 'xtfq')
      } else {
        // location.hash='#/404'
        // this.$router.push({ path: '/404' })
        this.$router.push('/404')
      }
    },
    loadLoginForm() {   //  自动填充账号密码,有缺陷，还没做好
      const loginInfo = getLocalstorage(this.itemAbbr1 + '_isRememberPassword')
      console.log(loginInfo)
      if (Boolean(loginInfo) === false) {
        return false
      } else {
        const index = loginInfo.indexOf('&')
        this.loginForm.username = loginInfo.substring(0, index)
        this.loginForm.password = loginInfo.substring(index + 1)
        this.isRememberPassword = true
      }
    }
  },
  created() {
    this.getHref()      // 在这之前获取url中的参数，从而改变登陆页面的渲染信息
    if (Boolean(getLocalstorage(this.itemAbbr1 + '_isRememberPassword')) === true) {  // 判断这个网站 是否需要记住密码 的设置为真还是为假
      this.isRememberPassword = true  // 记住密码应该变成选中状态
    } else {
      this.isRememberPassword = false
    }
    this.loadLoginForm()
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
  @import "src/styles/mixin.scss";
  $bg:#2d3a4b;
  $dark_gray:#889aa4;
  $light_gray:#eee;

  .login-container {
    @include relative;
    height: 100vh;
    background-color: $bg;
    input:-webkit-autofill {
      -webkit-box-shadow: 0 0 0px 1000px #293444 inset !important;
      -webkit-text-fill-color: #fff !important;
    }
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
    }
    .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;
    }
    .tips {
      font-size: 14px;
      color: #fff;
      margin-bottom: 10px;
    }
    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
      &_login {
        font-size: 20px;
      }
    }
    .title {
      font-size: 26px;
      font-weight: 400;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
    .login-form {
      position: absolute;
      left: 0;
      right: 0;
      width: 400px;
      padding: 35px 35px 15px 35px;
      margin: 120px auto;
    }
    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
    }
    .thirdparty-button{
      position: absolute;
      right: 35px;
      bottom: 28px;
    }
    .el-checkbox{
      margin-bottom: 10px;
      .el-checkbox__label{
      color:white;
      margin-left: 10px;
      }
      .el-checkbox__input{
      margin-left: 5px;
      }
    }    
  }
</style>
